On 01/08/16 07:43, Benjamin Herrenschmidt wrote:
On Mon, 2016-08-01 at 08:28 +0200, Howard Spoelstra wrote:
Perhaps a bit misleading, but I meant the installation DVD boots to the installer without the driver. It takes a long time before the installer shows. Picture is here: http://www.open.ou.nl/hsp/images/qemu/qemu_leopard.j pg I already have no keyboard at the OpenBIOS prompt when using -usbdevice keyboard, so perhaps someone else has better luck.
One thing I noticed too is that the first boot after a 10.4 install takes a very very long time on the gray apple before making progress.
I'm not 100% certain at this stage but I *suspect* the kext cache isn't created, causing BootX to read all of their plists, which means doing a *lot* of file IOs via OpenBIOS, and I have the nagging feeling that it's a pretty slow path ;-)
Hmmm yes. That's a single sector read interface wrapped by deblocker so it's not going to be amazingly fast. For comparison the posted virtio driver puts the start sector, target address and length directly into the descriptor so large reads there are reasonably efficient.
ATB,
Mark.